Final California 2018 Integrated Report (303(d) List/305(b) Report)

Supporting Information

Regional Board 3 - Central Coast Region

Water Body Name: Pacific Ocean at Avila Beach (Avila Pier)
Water Body ID: CAC3102402120100404115848
Water Body Type: Coastal & Bay Shoreline
 
DECISION ID
79655
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
Pollutant: Enterococcus
Final Listing Decision: Delist from 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Delist from 303(d) list (TMDL required list)(2016)
Revision Status Original
Reason for Delisting: Applicable WQS attained; reason for recovery unspecified
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for removal from the section 303(d) list under sections 4.2 and 4.3 of the Listing Policy. Under these sections, a single line of evidence is necessary to assess listing status.

Four lines of evidence are available in the administrative record to assess this pollutant. Twenty of 214 samples exceeded geometric mean standard for enterococcus (Water Quality Control Plan: Ocean Waters of California, SWRCB, 2005) and 21 of 311 samples exceeded the single sample maximum for enterococcus (Water Quality Control Plan: Ocean Waters of California, SWRCB, 2005).

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification for removing this water segment-pollutant combination from the section 303(d) list.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Twenty of 214 samples exceeded geometric mean standard for enterococcus (Water Quality Control Plan: Ocean Waters of California, SWRCB, 2005) and 21 of 311 samples exceeded the single sample maximum for enterococcus (Water Quality Control Plan: Ocean Waters of California, SWRCB, 2005) and this does not exceed the allowable frequency listed in Table 4.2 of the Listing Policy.
4. Pursuant to section 4.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 79655, Enterococcus
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 19206
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 24
Number of Exceedances: 5
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed data for Pacific Ocean at Avila Beach (Avila Pier) to determine beneficial use support and results are as follows: 5 of 24 samples exceed the criterion for Enterococci.
Data Reference: AB 411 Data for 2004
  AB 411 Data for 2005
  AB 411 Data for 2006
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: California Ocean Plan (SWRCB 2005) states that the geometric mean for Enterococcus shall not exceed 35 MPN/100 mL.
Objective/Criterion Reference: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Avila Beach was collected at one AB411 monitoring site (AB8)
Temporal Representation: Data was collected over the time period 1/4/2005 - 12/27/2006. This includes weekly AB411 monitoring between April 1 and October 31 of each year.
Environmental Conditions:
QAPP Information: QA information not available
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 79655, Enterococcus
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 56015
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 200
Number of Exceedances: 11
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Water Board staff assessed Beach Watch Program data that is collected by each County's Environmental Health Department for Pacific Ocean at Avila Beach (Avila Pier) to determine beneficial use support and results are as follows: 11 of 200 samples exceed the criterion for Enterococci.
Data Reference: Data for Region 3 Beach Watch.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: California Ocean Plan (SWRCB 2005) single sample maximum for enterococcus density shall not exceed 104 per 100 mL.
Objective/Criterion Reference: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Avila Beach (Avila Pier) was collected at 1 monitoring site [ AB8]
Temporal Representation: Data was collected over the time period 1/1/2007-8/30/2010.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: Water Board staff assessed Beach Watch Program data that is collected by each County's Environmental Health Department. There is no QA Project Plan but instead each County follows their own Quality Assurance Procedures
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 79655, Enterococcus
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 19207
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 111
Number of Exceedances: 10
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed data for Pacific Ocean at Avila Beach (Avila Pier) to determine beneficial use support and results are as follows: 10 of 111 samples exceed the criterion for Enterococci.
Data Reference: AB 411 Data for 2004
  AB 411 Data for 2005
  AB 411 Data for 2006
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: California Ocean Plan (SWRCB 2005) states that the single sample maximum for Enterococcus shall not exceed 104 MPN/100 mL.
Objective/Criterion Reference: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Avila Beach was collected at one AB411 monitoring site (AB8)
Temporal Representation: Data was collected over the time period 1/4/2005 - 12/27/2006. This includes weekly AB411 monitoring between April 1 and October 31 of each year.
Environmental Conditions:
QAPP Information: QA information not available
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 79655, Enterococcus
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 56016
 
Pollutant: Enterococcus
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 190
Number of Exceedances: 15
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: Fiffteen of the 190 geomeans exceeded the enterococcus objective.
Data Reference: Data for Region 3 Beach Watch.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The geometric mean standard for enterococcus states that the enterococcus density shall not exceed 35 MPN/100 mL. Water Quality Control Plan for Ocean Waters 2006.
Objective/Criterion Reference: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The samples were collected at AB8.
Temporal Representation: The samples were collected approximately once a week from January 2007 to August 2010.
Environmental Conditions:
QAPP Information: The samples were collected for the Beach Watch program.
QAPP Information Reference(s):
 
 
DECISION ID
84043
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
Pollutant: Chlorpyrifos
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: No new data are assessed. This decision has not changed from the 2010 listing cycle.

This pollutant is being considered for placement on the section 303(d) list under section 3.5 of the Listing Policy. Under section 3.5, a single line of evidence is necessary to assess listing status.

Two lines of evidence are available in the administrative record to assess this pollutant. Zero out of fifteen sand crab tissue samples exceeded the evaluation guideline. This sample size is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. A minimum of 16 samples is needed to determine if a beneficial use is supported using table 3.1.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:

1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.

2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.

3. Zero out of fifteen sand crab tissue samples exceeded the evaluation guideline. This does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy.

4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision Recommendation: This is a decision previously approved by the State Water Resources Control Board and the USEPA. No new data were assessed by the Regional Board for the current cycle. The decision has not changed.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 84043, Chlorpyrifos
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 14854
 
Pollutant: Chlorpyrifos
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 15
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Avila Beach (Avila Pier) to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for Chlorpyrifos.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: OEHHA Screening value for the protection of human health from the consumption of fish and shellfish. Brodberg and Pollock calculated "California Lakes Screening Values" for a 70 kg adult human and based on a fish consumption value of 21 g/day (1999)
Objective/Criterion Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Evaluation Guideline: OEHHA Screening Value in fish and shellfish tissue for Chlorpyrifos is 10000.0 ug/Kg
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Avila Beach (Avila Pier) was collected at 14 monitoring sites [ SCS02OOAB001 - Avila Beach at pier, SCS02OOAB002 - Avila Beach at pier, SCS02OOAB003 - Avila Beach 30E of pier, SCS02OOAB004 - Avila Beach 30E of pier, SCS02OOAB005 - Avila Beach 100E of pier, SCS02OOAB006 - Avila Beach 100E of pier, SCS02OOAB007 - Avila Beach 530E of pier, SCS02OOAB008 - Avila Beach 530E of pier, SCS02OOAB009 - Avila Beach 10W of beach, SCS02OOAB010 - Avila Beach 10W of beach, SCS02OOAB011 - Avila Beach 100W of beach, SCS02OOAB012 - Avila Beach 100W of beach, SCS02OOAB013 - Avila Beach 250W of pier, SCS02OOAB014 - Avila Beach 250W of pier]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 84043, Chlorpyrifos
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 14853
 
Pollutant: Chlorpyrifos
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 15
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Avila Beach (Avila Pier) to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for Chlorpyrifos.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: A water segment shall be placed on the section 303(d) list if the tissue pollutant levels in organisms exceed a pollutant-specific evaluation guideline (OEHHA or EPA) using the binomial distribution as described in section 3.1 (Water Quality Control Policy, SWRCB 2004)
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) - Central Coast Region (Region 3)
 
Evaluation Guideline: For the protection of human health from the consumption of fish and shellfish, the OEHHA screening value for Chlorpyrifos is 10,000 ug/Kg wet weight (Brodberg and Pollock 1999)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Avila Beach (Avila Pier) was collected at 14 monitoring sites [ SCS02OOAB001 - Avila Beach at pier, SCS02OOAB002 - Avila Beach at pier, SCS02OOAB003 - Avila Beach 30E of pier, SCS02OOAB004 - Avila Beach 30E of pier, SCS02OOAB005 - Avila Beach 100E of pier, SCS02OOAB006 - Avila Beach 100E of pier, SCS02OOAB007 - Avila Beach 530E of pier, SCS02OOAB008 - Avila Beach 530E of pier, SCS02OOAB009 - Avila Beach 10W of beach, SCS02OOAB010 - Avila Beach 10W of beach, SCS02OOAB011 - Avila Beach 100W of beach, SCS02OOAB012 - Avila Beach 100W of beach, SCS02OOAB013 - Avila Beach 250W of pier, SCS02OOAB014 - Avila Beach 250W of pier]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
 
DECISION ID
71446
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
Pollutant: Diazinon
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: No new data are assessed. This decision has not changed from the 2010 listing cycle.

This pollutant is being considered for placement on the section 303(d) list under section 3.5 of the Listing Policy. Under section 3.5, a single line of evidence is necessary to assess listing status.

Two lines of evidence are available in the administrative record to assess this pollutant. Zero out of fifteen sand crab tissue samples exceeded the evaluation guideline. This sample size is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. A minimum of 16 samples is needed to determine if a beneficial use is supported using table 3.1.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:

1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.

2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.

3. Zero out of fifteen sand crab tissue samples exceeded the evaluation guideline. This does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy.

4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision Recommendation: This is a decision previously approved by the State Water Resources Control Board and the USEPA. No new data were assessed by the Regional Board for the current cycle. The decision has not changed.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 71446, Diazinon
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 14874
 
Pollutant: Diazinon
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 15
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Avila Beach (Avila Pier) to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for Diazinon.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: A water segment shall be placed on the section 303(d) list if the tissue pollutant levels in organisms exceed a pollutant-specific evaluation guideline (OEHHA or EPA) using the binomial distribution as described in section 3.1 (Water Quality Control Policy, SWRCB 2004)
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) - Central Coast Region (Region 3)
 
Evaluation Guideline: For the protection of human health from the consumption of fish and shellfish, the OEHHA screening value for Diazinon is 300 ug/Kg wet weight (Brodberg and Pollock 1999)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Avila Beach (Avila Pier) was collected at 14 monitoring sites [ SCS02OOAB001 - Avila Beach at pier, SCS02OOAB002 - Avila Beach at pier, SCS02OOAB003 - Avila Beach 30E of pier, SCS02OOAB004 - Avila Beach 30E of pier, SCS02OOAB005 - Avila Beach 100E of pier, SCS02OOAB006 - Avila Beach 100E of pier, SCS02OOAB007 - Avila Beach 530E of pier, SCS02OOAB008 - Avila Beach 530E of pier, SCS02OOAB009 - Avila Beach 10W of beach, SCS02OOAB010 - Avila Beach 10W of beach, SCS02OOAB011 - Avila Beach 100W of beach, SCS02OOAB012 - Avila Beach 100W of beach, SCS02OOAB013 - Avila Beach 250W of pier, SCS02OOAB014 - Avila Beach 250W of pier]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 71446, Diazinon
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 14875
 
Pollutant: Diazinon
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 15
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Avila Beach (Avila Pier) to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for Diazinon.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: OEHHA Screening value for the protection of human health from the consumption of fish and shellfish. Brodberg and Pollock calculated "California Lakes Screening Values" for a 70 kg adult human and based on a fish consumption value of 21 g/day (1999)
Objective/Criterion Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Evaluation Guideline: OEHHA Screening Value in fish and shellfish tissue for Diazinon is 300.0 ug/Kg
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Avila Beach (Avila Pier) was collected at 14 monitoring sites [ SCS02OOAB001 - Avila Beach at pier, SCS02OOAB002 - Avila Beach at pier, SCS02OOAB003 - Avila Beach 30E of pier, SCS02OOAB004 - Avila Beach 30E of pier, SCS02OOAB005 - Avila Beach 100E of pier, SCS02OOAB006 - Avila Beach 100E of pier, SCS02OOAB007 - Avila Beach 530E of pier, SCS02OOAB008 - Avila Beach 530E of pier, SCS02OOAB009 - Avila Beach 10W of beach, SCS02OOAB010 - Avila Beach 10W of beach, SCS02OOAB011 - Avila Beach 100W of beach, SCS02OOAB012 - Avila Beach 100W of beach, SCS02OOAB013 - Avila Beach 250W of pier, SCS02OOAB014 - Avila Beach 250W of pier]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
 
DECISION ID
84044
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
Pollutant: Dieldrin
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: No new data are assessed. This decision has not changed from the 2010 listing cycle.

This pollutant is being considered for placement on the section 303(d) list under section 3.5 of the Listing Policy. Under section 3.5, a single line of evidence is necessary to assess listing status.

Two lines of evidence are available in the administrative record to assess this pollutant. Zero out of fifteen sand crab tissue samples exceeded the evaluation guideline. This sample size is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. A minimum of 16 samples is needed to determine if a beneficial use is supported using table 3.1.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:

1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.

2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.

3. Zero out of fifteen sand crab tissue samples exceeded the evaluation guideline. This does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy.

4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision Recommendation: This is a decision previously approved by the State Water Resources Control Board and the USEPA. No new data were assessed by the Regional Board for the current cycle. The decision has not changed.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 84044, Dieldrin
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 14895
 
Pollutant: Dieldrin
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 15
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Avila Beach (Avila Pier) to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for Dieldrin.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: A water segment shall be placed on the section 303(d) list if the tissue pollutant levels in organisms exceed a pollutant-specific evaluation guideline (OEHHA or EPA) using the binomial distribution as described in section 3.1 (Water Quality Control Policy, SWRCB 2004)
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) - Central Coast Region (Region 3)
 
Evaluation Guideline: For the protection of human health from the consumption of fish and shellfish, the OEHHA screening value for Dieldrin is 2.0 ug/Kg wet weight (Brodberg and Pollock 1999)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Avila Beach (Avila Pier) was collected at 14 monitoring sites [ SCS02OOAB001 - Avila Beach at pier, SCS02OOAB002 - Avila Beach at pier, SCS02OOAB003 - Avila Beach 30E of pier, SCS02OOAB004 - Avila Beach 30E of pier, SCS02OOAB005 - Avila Beach 100E of pier, SCS02OOAB006 - Avila Beach 100E of pier, SCS02OOAB007 - Avila Beach 530E of pier, SCS02OOAB008 - Avila Beach 530E of pier, SCS02OOAB009 - Avila Beach 10W of beach, SCS02OOAB010 - Avila Beach 10W of beach, SCS02OOAB011 - Avila Beach 100W of beach, SCS02OOAB012 - Avila Beach 100W of beach, SCS02OOAB013 - Avila Beach 250W of pier, SCS02OOAB014 - Avila Beach 250W of pier]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 84044, Dieldrin
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 14896
 
Pollutant: Dieldrin
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 15
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Avila Beach (Avila Pier) to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for Dieldrin.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: OEHHA Screening value for the protection of human health from the consumption of fish and shellfish. Brodberg and Pollock calculated "California Lakes Screening Values" for a 70 kg adult human and based on a fish consumption value of 21 g/day (1999)
Objective/Criterion Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Evaluation Guideline: OEHHA Screening Value in fish and shellfish tissue for Dieldrin is 2.0 ug/Kg
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Avila Beach (Avila Pier) was collected at 14 monitoring sites [ SCS02OOAB001 - Avila Beach at pier, SCS02OOAB002 - Avila Beach at pier, SCS02OOAB003 - Avila Beach 30E of pier, SCS02OOAB004 - Avila Beach 30E of pier, SCS02OOAB005 - Avila Beach 100E of pier, SCS02OOAB006 - Avila Beach 100E of pier, SCS02OOAB007 - Avila Beach 530E of pier, SCS02OOAB008 - Avila Beach 530E of pier, SCS02OOAB009 - Avila Beach 10W of beach, SCS02OOAB010 - Avila Beach 10W of beach, SCS02OOAB011 - Avila Beach 100W of beach, SCS02OOAB012 - Avila Beach 100W of beach, SCS02OOAB013 - Avila Beach 250W of pier, SCS02OOAB014 - Avila Beach 250W of pier]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
 
DECISION ID
84083
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
Pollutant: Endosulfan
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: No new data are assessed. This decision has not changed from the 2010 listing cycle.

This pollutant is being considered for placement on the section 303(d) list under section 3.5 of the Listing Policy. Under section 3.5, a single line of evidence is necessary to assess listing status.

One line of evidence is available in the administrative record to assess this pollutant. Zero out of fifteen sand crab tissue samples exceeded the evaluation guideline. This sample size is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. A minimum of 16 samples is needed to determine if a beneficial use is supported using table 3.1.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:

1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.

2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.

3. Zero out of fifteen sand crab tissue samples exceeded the evaluation guideline. This does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy.

4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision Recommendation: This is a decision previously approved by the State Water Resources Control Board and the USEPA. No new data were assessed by the Regional Board for the current cycle. The decision has not changed.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 84083, Endosulfan
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 14916
 
Pollutant: Endosulfan
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 15
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Avila Beach (Avila Pier) to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for Endosulfan I.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: OEHHA Screening value for the protection of human health from the consumption of fish and shellfish. Brodberg and Pollock calculated "California Lakes Screening Values" for a 70 kg adult human and based on a fish consumption value of 21 g/day (1999)
Objective/Criterion Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Evaluation Guideline: OEHHA Screening Value in fish and shellfish tissue for Endoculfan is 20000.0 ug/Kg
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Avila Beach (Avila Pier) was collected at 14 monitoring sites [ SCS02OOAB001 - Avila Beach at pier, SCS02OOAB002 - Avila Beach at pier, SCS02OOAB003 - Avila Beach 30E of pier, SCS02OOAB004 - Avila Beach 30E of pier, SCS02OOAB005 - Avila Beach 100E of pier, SCS02OOAB006 - Avila Beach 100E of pier, SCS02OOAB007 - Avila Beach 530E of pier, SCS02OOAB008 - Avila Beach 530E of pier, SCS02OOAB009 - Avila Beach 10W of beach, SCS02OOAB010 - Avila Beach 10W of beach, SCS02OOAB011 - Avila Beach 100W of beach, SCS02OOAB012 - Avila Beach 100W of beach, SCS02OOAB013 - Avila Beach 250W of pier, SCS02OOAB014 - Avila Beach 250W of pier]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
 
DECISION ID
72435
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
Pollutant: Endrin
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: No new data are assessed. This decision has not changed from the 2010 listing cycle.

This pollutant is being considered for placement on the section 303(d) list under section 3.5 of the Listing Policy. Under section 3.5, a single line of evidence is necessary to assess listing status.

Two lines of evidence are available in the administrative record to assess this pollutant. Zero out of fifteen sand crab tissue samples exceeded the evaluation guideline. This sample size is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. A minimum of 16 samples is needed to determine if a beneficial use is supported using table 3.1.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:

1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.

2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.

3. Zero out of fifteen sand crab tissue samples exceeded the evaluation guideline. This does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy.

4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision Recommendation: This is a decision previously approved by the State Water Resources Control Board and the USEPA. No new data were assessed by the Regional Board for the current cycle. The decision has not changed.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 72435, Endrin
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 14934
 
Pollutant: Endrin
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 15
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Avila Beach (Avila Pier) to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for Endrin.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: A water segment shall be placed on the section 303(d) list if the tissue pollutant levels in organisms exceed a pollutant-specific evaluation guideline (OEHHA or EPA) using the binomial distribution as described in section 3.1 (Water Quality Control Policy, SWRCB 2004)
Objective/Criterion Reference: Water Quality Control Policy For Developing California's Clean Water Act Section 303(d) List. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency.
 
Evaluation Guideline: For the protection of human health from the consumption of fish and shellfish, the OEHHA screening value for Endrin is 1,000 ug/Kg wet weight (Brodberg and Pollock 1999)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Avila Beach (Avila Pier) was collected at 14 monitoring sites [ SCS02OOAB001 - Avila Beach at pier, SCS02OOAB002 - Avila Beach at pier, SCS02OOAB003 - Avila Beach 30E of pier, SCS02OOAB004 - Avila Beach 30E of pier, SCS02OOAB005 - Avila Beach 100E of pier, SCS02OOAB006 - Avila Beach 100E of pier, SCS02OOAB007 - Avila Beach 530E of pier, SCS02OOAB008 - Avila Beach 530E of pier, SCS02OOAB009 - Avila Beach 10W of beach, SCS02OOAB010 - Avila Beach 10W of beach, SCS02OOAB011 - Avila Beach 100W of beach, SCS02OOAB012 - Avila Beach 100W of beach, SCS02OOAB013 - Avila Beach 250W of pier, SCS02OOAB014 - Avila Beach 250W of pier]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 72435, Endrin
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 14935
 
Pollutant: Endrin
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 15
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Avila Beach (Avila Pier) to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for Endrin.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: OEHHA Screening value for the protection of human health from the consumption of fish and shellfish. Brodberg and Pollock calculated "California Lakes Screening Values" for a 70 kg adult human and based on a fish consumption value of 21 g/day (1999)
Objective/Criterion Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Evaluation Guideline: OEHHA Screening Value in fish and shellfish tissue for Endrin is 1000.0 ug/Kg
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Avila Beach (Avila Pier) was collected at 14 monitoring sites [ SCS02OOAB001 - Avila Beach at pier, SCS02OOAB002 - Avila Beach at pier, SCS02OOAB003 - Avila Beach 30E of pier, SCS02OOAB004 - Avila Beach 30E of pier, SCS02OOAB005 - Avila Beach 100E of pier, SCS02OOAB006 - Avila Beach 100E of pier, SCS02OOAB007 - Avila Beach 530E of pier, SCS02OOAB008 - Avila Beach 530E of pier, SCS02OOAB009 - Avila Beach 10W of beach, SCS02OOAB010 - Avila Beach 10W of beach, SCS02OOAB011 - Avila Beach 100W of beach, SCS02OOAB012 - Avila Beach 100W of beach, SCS02OOAB013 - Avila Beach 250W of pier, SCS02OOAB014 - Avila Beach 250W of pier]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
 
DECISION ID
72128
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
Pollutant: Fecal Coliform
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the section 303(d) list under sections 3.2 and 3.3 of the Listing Policy. Under these sections, a single line of evidence is necessary to assess listing status.

Four lines of evidence are available in the administrative record to assess this pollutant. Zero of 202 samples exceeded geometric mean standard for fecal coliform (Water Quality Control Plan: Ocean Waters of California, SWRCB, 2005) and 7 of 300 samples exceeded the single sample maximum for fecal coliform (Water Quality Control Plan: Ocean Waters of California, SWRCB, 2005).

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Zero of 202 samples exceeded geometric mean standard for enterococcus and 7 of 300 samples exceeded the single sample maximum for enterococcus (Water Quality Control Plan: Ocean Waters of California, SWRCB, 2005) and this does not exceed the allowable frequency listed in Table 3.2 of the Listing Policy.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should not be placed on the section 303(d) list because applicable water quality standards are not being exceeded.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 72128, Fecal Coliform
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 56018
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 178
Number of Exceedances: 0
 
Data and Information Type: Not Specified
Data Used to Assess Water Quality: E. coli data results are assessed using the Ocean Plan objective for fecal coliform. A thirty day, rolling geomean was calculated for all data provided when four or more samples were collected within the 30 day period. 0 of the 178 geomeans exceeded the objective.
Data Reference: Data for Region 3 Beach Watch.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The geometric mean standard for fecal coliform states that the fecal coliform density shall not exceed 200 MPN/100 mL. Water Quality Control Plan for Ocean Waters 2006.
Objective/Criterion Reference: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: The samples were collected at AB8.
Temporal Representation: The samples were collected approximately once a week from January 2007 to August 2010.
Environmental Conditions:
QAPP Information: The samples were collected for the Beach Watch program.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 72128, Fecal Coliform
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 19204
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 24
Number of Exceedances: 0
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed data for Pacific Ocean at Avila Beach (Avila Pier) to determine beneficial use support and results are as follows: 0 of 24 samples exceed the criterion for Coliform, Fecal.
Data Reference: AB 411 Data for 2004
  AB 411 Data for 2005
  AB 411 Data for 2006
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: California Ocean Plan (SWRCB 2005) states that the 30-day geometric mean for fecal coliform shall not exceed 200 MPN/100 mL.
Objective/Criterion Reference: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Avila Beach was collected at one AB411 monitoring site (AB8)
Temporal Representation: Data was collected over the time period 1/4/2005 - 12/27/2006. This includes weekly AB411 monitoring between April 1 and October 31 of each year and also targets storm water events.
Environmental Conditions:
QAPP Information: QA information not available
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 72128, Fecal Coliform
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 19205
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 110
Number of Exceedances: 7
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed data for Pacific Ocean at Avila Beach (Avila Pier) to determine beneficial use support and results are as follows: 7 of 110 samples exceed the criterion for Coliform, Fecal.
Data Reference: AB 411 Data for 2004
  AB 411 Data for 2005
  AB 411 Data for 2006
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: California Ocean Plan (SWRCB 2005) states that the single sample maximum for fecal coliform shall not exceed 400 MPN/100 mL.
Objective/Criterion Reference: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Avila Beach was collected at one AB411 monitoring site (AB8)
Temporal Representation: Data was collected over the time period 1/4/2005 - 12/27/2006. This includes weekly AB411 monitoring between April 1 and October 31 of each year.
Environmental Conditions:
QAPP Information: QA information not available
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 72128, Fecal Coliform
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 56017
 
Pollutant: Fecal Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Water Contact Recreation
 
Number of Samples: 190
Number of Exceedances: 0
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Water Board staff assessed Beach Watch Program data that is collected by each County's Environmental Health Department. E. coli data results are assessed using the Ocean Plan single sample maximum objective for fecal coliform to determine beneficial use support for the station named Pacific Ocean at Avila Beach (Avila Pier) and results are as follows: 0 of 190 samples exceed the criterion for Coliform, Fecal.
Data Reference: Data for Region 3 Beach Watch.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: California Ocean Plan (SWRCB 2005) single sample maximum for fecal coliform density shall not exceed 400 per 100ml
Objective/Criterion Reference: Water Quality Control Plan Ocean Waters of California. California Ocean Plan 2005. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Avila Beach (Avila Pier) was collected at 1 monitoring site [ AB8]
Temporal Representation: Data was collected over the time period 1/1/2007-8/30/2010.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: Water Board staff assessed Beach Watch Program data that is collected by each County's Environmental Health Department. There is no QA Project Plan but instead each County follows their own Quality Assurance Procedures
QAPP Information Reference(s):
 
 
DECISION ID
84085
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
Pollutant: Heptachlor epoxide
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: No new data are assessed. This decision has not changed from the 2010 listing cycle.

This pollutant is being considered for placement on the section 303(d) list under section 3.5 of the Listing Policy. Under section 3.5, a single line of evidence is necessary to assess listing status.

Two lines of evidence are available in the administrative record to assess this pollutant. Zero out of fifteen sand crab tissue samples exceeded the evaluation guideline. This sample size is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. A minimum of 16 samples is needed to determine if a beneficial use is supported using table 3.1.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:

1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.

2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.

3. Zero out of fifteen sand crab tissue samples exceeded the evaluation guideline. This does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy.

4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision Recommendation: This is a decision previously approved by the State Water Resources Control Board and the USEPA. No new data were assessed by the Regional Board for the current cycle. The decision has not changed.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 84085, Heptachlor epoxide
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 14955
 
Pollutant: Heptachlor epoxide
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 15
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Avila Beach (Avila Pier) to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for Heptachlor epoxide.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: A water segment shall be placed on the section 303(d) list if the tissue pollutant levels in organisms exceed a pollutant-specific evaluation guideline (OEHHA or EPA) using the binomial distribution as described in section 3.1 (Water Quality Control Policy, SWRCB 2004)
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) - Central Coast Region (Region 3)
 
Evaluation Guideline: For the protection of human health from the consumption of fish and shellfish, the OEHHA screening value for Total Heptachlor Epoxide is 4.0 ug/Kg wet weight (Brodberg and Pollock 1999)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Avila Beach (Avila Pier) was collected at 14 monitoring sites [ SCS02OOAB001 - Avila Beach at pier, SCS02OOAB002 - Avila Beach at pier, SCS02OOAB003 - Avila Beach 30E of pier, SCS02OOAB004 - Avila Beach 30E of pier, SCS02OOAB005 - Avila Beach 100E of pier, SCS02OOAB006 - Avila Beach 100E of pier, SCS02OOAB007 - Avila Beach 530E of pier, SCS02OOAB008 - Avila Beach 530E of pier, SCS02OOAB009 - Avila Beach 10W of beach, SCS02OOAB010 - Avila Beach 10W of beach, SCS02OOAB011 - Avila Beach 100W of beach, SCS02OOAB012 - Avila Beach 100W of beach, SCS02OOAB013 - Avila Beach 250W of pier, SCS02OOAB014 - Avila Beach 250W of pier]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 84085, Heptachlor epoxide
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 14956
 
Pollutant: Heptachlor epoxide
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 15
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Avila Beach (Avila Pier) to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for Heptachlor epoxide.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: OEHHA Screening value for the protection of human health from the consumption of fish and shellfish. Brodberg and Pollock calculated "California Lakes Screening Values" for a 70 kg adult human and based on a fish consumption value of 21 g/day (1999)
Objective/Criterion Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Evaluation Guideline: OEHHA Screening Value in fish and shellfish tissue for Heptachlor Epoxide is 4.0 ug/Kg
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Avila Beach (Avila Pier) was collected at 14 monitoring sites [ SCS02OOAB001 - Avila Beach at pier, SCS02OOAB002 - Avila Beach at pier, SCS02OOAB003 - Avila Beach 30E of pier, SCS02OOAB004 - Avila Beach 30E of pier, SCS02OOAB005 - Avila Beach 100E of pier, SCS02OOAB006 - Avila Beach 100E of pier, SCS02OOAB007 - Avila Beach 530E of pier, SCS02OOAB008 - Avila Beach 530E of pier, SCS02OOAB009 - Avila Beach 10W of beach, SCS02OOAB010 - Avila Beach 10W of beach, SCS02OOAB011 - Avila Beach 100W of beach, SCS02OOAB012 - Avila Beach 100W of beach, SCS02OOAB013 - Avila Beach 250W of pier, SCS02OOAB014 - Avila Beach 250W of pier]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
 
DECISION ID
72124
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
Pollutant: Hexachlorobenzene/ HCB
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: No new data are assessed. This decision has not changed from the 2010 listing cycle.

This pollutant is being considered for placement on the section 303(d) list under section 3.5 of the Listing Policy. Under section 3.5, a single line of evidence is necessary to assess listing status.

Two lines of evidence are available in the administrative record to assess this pollutant. Zero out of fifteen sand crab tissue samples exceeded the evaluation guideline. This sample size is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. A minimum of 16 samples is needed to determine if a beneficial use is supported using table 3.1.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:

1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.

2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.

3. Zero out of fifteen sand crab tissue samples exceeded the evaluation guideline. This does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy.

4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision Recommendation: This is a decision previously approved by the State Water Resources Control Board and the USEPA. No new data were assessed by the Regional Board for the current cycle. The decision has not changed.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 72124, Hexachlorobenzene/ HCB
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 14975
 
Pollutant: Hexachlorobenzene/ HCB
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 15
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Avila Beach (Avila Pier) to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for Hexachlorobenzene.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: A water segment shall be placed on the section 303(d) list if the tissue pollutant levels in organisms exceed a pollutant-specific evaluation guideline (OEHHA or EPA) using the binomial distribution as described in section 3.1 (Water Quality Control Policy, SWRCB 2004)
Objective/Criterion Reference: Water Quality Control Plan (Basin Plan) - Central Coast Region (Region 3)
 
Evaluation Guideline: For the protection of human health from the consumption of fish and shellfish, the OEHHA screening value for Total Hexachlorobenzene is 20 ug/Kg wet weight (Brodberg and Pollock 1999)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Avila Beach (Avila Pier) was collected at 14 monitoring sites [ SCS02OOAB001 - Avila Beach at pier, SCS02OOAB002 - Avila Beach at pier, SCS02OOAB003 - Avila Beach 30E of pier, SCS02OOAB004 - Avila Beach 30E of pier, SCS02OOAB005 - Avila Beach 100E of pier, SCS02OOAB006 - Avila Beach 100E of pier, SCS02OOAB007 - Avila Beach 530E of pier, SCS02OOAB008 - Avila Beach 530E of pier, SCS02OOAB009 - Avila Beach 10W of beach, SCS02OOAB010 - Avila Beach 10W of beach, SCS02OOAB011 - Avila Beach 100W of beach, SCS02OOAB012 - Avila Beach 100W of beach, SCS02OOAB013 - Avila Beach 250W of pier, SCS02OOAB014 - Avila Beach 250W of pier]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 72124, Hexachlorobenzene/ HCB
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 14976
 
Pollutant: Hexachlorobenzene/ HCB
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 15
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Avila Beach (Avila Pier) to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for Hexachlorobenzene.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: OEHHA Screening value for the protection of human health from the consumption of fish and shellfish. Brodberg and Pollock calculated "California Lakes Screening Values" for a 70 kg adult human and based on a fish consumption value of 21 g/day (1999)
Objective/Criterion Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Evaluation Guideline: OEHHA Screening Value in fish and shellfish tissue for Hexachlorobenzene is 20.0 ug/Kg
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Avila Beach (Avila Pier) was collected at 14 monitoring sites [ SCS02OOAB001 - Avila Beach at pier, SCS02OOAB002 - Avila Beach at pier, SCS02OOAB003 - Avila Beach 30E of pier, SCS02OOAB004 - Avila Beach 30E of pier, SCS02OOAB005 - Avila Beach 100E of pier, SCS02OOAB006 - Avila Beach 100E of pier, SCS02OOAB007 - Avila Beach 530E of pier, SCS02OOAB008 - Avila Beach 530E of pier, SCS02OOAB009 - Avila Beach 10W of beach, SCS02OOAB010 - Avila Beach 10W of beach, SCS02OOAB011 - Avila Beach 100W of beach, SCS02OOAB012 - Avila Beach 100W of beach, SCS02OOAB013 - Avila Beach 250W of pier, SCS02OOAB014 - Avila Beach 250W of pier]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
 
DECISION ID
72125
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
Pollutant: Mirex
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: No new data are assessed. This decision has not changed from the 2010 listing cycle.

This pollutant is being considered for placement on the section 303(d) list under section 3.5 of the Listing Policy. Under section 3.5, a single line of evidence is necessary to assess listing status.

Two lines of evidence are available in the administrative record to assess this pollutant. Zero out of fifteen sand crab tissue samples exceeded the evaluation guideline. This sample size is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. A minimum of 16 samples is needed to determine if a beneficial use is supported using table 3.1.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:

1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.

2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.

3. Zero out of fifteen sand crab tissue samples exceeded the evaluation guideline. This does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy.

4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision Recommendation: This is a decision previously approved by the State Water Resources Control Board and the USEPA. No new data were assessed by the Regional Board for the current cycle. The decision has not changed.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 72125, Mirex
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 14996
 
Pollutant: Mirex
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 15
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Avila Beach (Avila Pier) to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for Mirex.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: A water segment shall be placed on the section 303(d) list if the tissue pollutant levels in organisms exceed a pollutant-specific evaluation guideline (OEHHA or EPA) using the binomial distribution as described in section 3.1 (Water Quality Control Policy, SWRCB 2004)
Objective/Criterion Reference: Water Quality Control Policy For Developing California's Clean Water Act Section 303(d) List. Sacramento, CA: State Water Resources Control Board, California Environmental Protection Agency.
 
Evaluation Guideline: For the protection of human health from the consumption of fish and shellfish, the EPA screening value for Mirex is 800 ug/Kg wet weight (USEPA 2000)
Guideline Reference: Guidance for assessing chemical contaminant data for use in fish advisories. Vol. 1: Fish sampling and analysis. Third Edition. EPA 823-B-00-007. Washington, D.C.: Office of Water, USEPA
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Avila Beach (Avila Pier) was collected at 14 monitoring sites [ SCS02OOAB001 - Avila Beach at pier, SCS02OOAB002 - Avila Beach at pier, SCS02OOAB003 - Avila Beach 30E of pier, SCS02OOAB004 - Avila Beach 30E of pier, SCS02OOAB005 - Avila Beach 100E of pier, SCS02OOAB006 - Avila Beach 100E of pier, SCS02OOAB007 - Avila Beach 530E of pier, SCS02OOAB008 - Avila Beach 530E of pier, SCS02OOAB009 - Avila Beach 10W of beach, SCS02OOAB010 - Avila Beach 10W of beach, SCS02OOAB011 - Avila Beach 100W of beach, SCS02OOAB012 - Avila Beach 100W of beach, SCS02OOAB013 - Avila Beach 250W of pier, SCS02OOAB014 - Avila Beach 250W of pier]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 72125, Mirex
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 15011
 
Pollutant: Mirex
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 15
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Avila Beach (Avila Pier) to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for Mirex.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: USEPA Recommended Screening Values for target analytes - recreational fishers (Table 5-3 in USEPA 2000 (page 5-11)).
Objective/Criterion Reference: Guidance for assessing chemical contaminant data for use in fish advisories. Vol. 1: Fish sampling and analysis. Third Edition. EPA 823-B-00-007. Washington, D.C.: Office of Water, USEPA
 
Evaluation Guideline: USEPA Screening Value in fish and shellfish tissue for Mirex is 800.0 ug/Kg
Guideline Reference: Guidance for assessing chemical contaminant data for use in fish advisories. Vol. 1: Fish sampling and analysis. Third Edition. EPA 823-B-00-007. Washington, D.C.: Office of Water, USEPA
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Avila Beach (Avila Pier) was collected at 14 monitoring sites [ SCS02OOAB001 - Avila Beach at pier, SCS02OOAB002 - Avila Beach at pier, SCS02OOAB003 - Avila Beach 30E of pier, SCS02OOAB004 - Avila Beach 30E of pier, SCS02OOAB005 - Avila Beach 100E of pier, SCS02OOAB006 - Avila Beach 100E of pier, SCS02OOAB007 - Avila Beach 530E of pier, SCS02OOAB008 - Avila Beach 530E of pier, SCS02OOAB009 - Avila Beach 10W of beach, SCS02OOAB010 - Avila Beach 10W of beach, SCS02OOAB011 - Avila Beach 100W of beach, SCS02OOAB012 - Avila Beach 100W of beach, SCS02OOAB013 - Avila Beach 250W of pier, SCS02OOAB014 - Avila Beach 250W of pier]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
 
DECISION ID
71123
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
Pollutant: Toxaphene
Final Listing Decision: Do Not List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: Do Not List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: No new data are assessed. This decision has not changed from the 2010 listing cycle.

This pollutant is being considered for placement on the section 303(d) list under section 3.5 of the Listing Policy. Under section 3.5, a single line of evidence is necessary to assess listing status.

Two lines of evidence are available in the administrative record to assess this pollutant. Zero out of fifteen sand crab tissue samples exceeded the evaluation guideline. This sample size is insufficient to determine, with the power and confidence of the Listing Policy, the applicable beneficial use support rating. A minimum of 16 samples is needed to determine if a beneficial use is supported using table 3.1.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification against placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:

1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.

2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.

3. Zero out of fifteen sand crab tissue samples exceeded the evaluation guideline. This does not exceed the allowable frequency listed in Table 3.1 of the Listing Policy.

4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision Recommendation: This is a decision previously approved by the State Water Resources Control Board and the USEPA. No new data were assessed by the Regional Board for the current cycle. The decision has not changed.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 71123, Toxaphene
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 15782
 
Pollutant: Toxaphene
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Commercial or recreational collection of fish, shellfish, or organisms
 
Number of Samples: 15
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Avila Beach (Avila Pier) to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for Toxaphene.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: A water segment shall be placed on the section 303(d) list if the tissue pollutant levels in organisms exceed a pollutant-specific evaluation guideline (OEHHA or EPA) using the binomial distribution as described in section 3.1 (Water Quality Control Policy, SWRCB 2004)
Objective/Criterion Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Evaluation Guideline: For the protection of human health from the consumption of fish and shellfish, the OEHHA screening value for total Toxaphene is 30 ug/Kg wet weight (Brodberg and Pollock 1999)
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Avila Beach (Avila Pier) was collected at 14 monitoring sites [ SCS02OOAB001 - Avila Beach at pier, SCS02OOAB002 - Avila Beach at pier, SCS02OOAB003 - Avila Beach 30E of pier, SCS02OOAB004 - Avila Beach 30E of pier, SCS02OOAB005 - Avila Beach 100E of pier, SCS02OOAB006 - Avila Beach 100E of pier, SCS02OOAB007 - Avila Beach 530E of pier, SCS02OOAB008 - Avila Beach 530E of pier, SCS02OOAB009 - Avila Beach 10W of beach, SCS02OOAB010 - Avila Beach 10W of beach, SCS02OOAB011 - Avila Beach 100W of beach, SCS02OOAB012 - Avila Beach 100W of beach, SCS02OOAB013 - Avila Beach 250W of pier, SCS02OOAB014 - Avila Beach 250W of pier]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
Line of Evidence (LOE) for Decision ID 71123, Toxaphene
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 15795
 
Pollutant: Toxaphene
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 15
Number of Exceedances: 0
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data for Pacific Ocean at Avila Beach (Avila Pier) to determine beneficial use support and results are as follows: 0 of 15 samples exceed the criterion for Toxaphene.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion: OEHHA Screening value for the protection of human health from the consumption of fish and shellfish. Brodberg and Pollock calculated "California Lakes Screening Values" for a 70 kg adult human and based on a fish consumption value of 21 g/day (1999)
Objective/Criterion Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Evaluation Guideline: OEHHA Screening Value in fish and shellfish tissue for Toxaphene is 30.0 ug/Kg
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Avila Beach (Avila Pier) was collected at 14 monitoring sites [ SCS02OOAB001 - Avila Beach at pier, SCS02OOAB002 - Avila Beach at pier, SCS02OOAB003 - Avila Beach 30E of pier, SCS02OOAB004 - Avila Beach 30E of pier, SCS02OOAB005 - Avila Beach 100E of pier, SCS02OOAB006 - Avila Beach 100E of pier, SCS02OOAB007 - Avila Beach 530E of pier, SCS02OOAB008 - Avila Beach 530E of pier, SCS02OOAB009 - Avila Beach 10W of beach, SCS02OOAB010 - Avila Beach 10W of beach, SCS02OOAB011 - Avila Beach 100W of beach, SCS02OOAB012 - Avila Beach 100W of beach, SCS02OOAB013 - Avila Beach 250W of pier, SCS02OOAB014 - Avila Beach 250W of pier]
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
 
DECISION ID
84052
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
Pollutant: PCBs (Polychlorinated biphenyls)
Final Listing Decision: List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Sources: A Source Unknown
Expected TMDL Completion Date: 2027
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: No new data are assessed. This decision has not changed from the 2010 listing cycle.

This pollutant is being considered for placement on the section 303(d) list under section 3.5 of the Listing Policy. Under section 3.5, a single line of evidence is necessary to assess listing status.

One line of evidence is available in the administrative record to assess this pollutant. Fourteen out of fourteen sand crab tissue samples exceeded the evaluation guideline.

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification for placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:

1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.

2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.

3. Fourteen out of fourteen sand crab tissue samples exceeded the evaluation guideline. This exceeds the allowable frequency listed in Table 3.1 of the Listing Policy.

4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision Recommendation: This is a decision previously approved by the State Water Resources Control Board and the USEPA. No new data were assessed by the Regional Board for the current cycle. The decision has not changed.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 84052, PCBs (Polychlorinated biphenyls)
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 14942
 
Pollutant: PCBs (Polychlorinated biphenyls)
LOE Subgroup: Pollutant-Tissue
Matrix: Tissue
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 14
Number of Exceedances: 14
 
Data and Information Type: PHYSICAL/CHEMICAL MONITORING
Data Used to Assess Water Quality: Central Coast Regional Board Staff assessed Sand Crab Tissue Monitoring (SandCrabs) data From fourteen distinct sampling locations along Avila Beach (Avila Pier) to determine beneficial use support and results are as follows: all 14 samples exceed the criterion for total PCBs. In all cased, anachlor 1254 exceded the evaluation guideline and results for anachlors 1248 and 1260 were non-detects.
Data Reference: Final Data File used for assessment: SWAMP Sand Crab Tissue Data
 
SWAMP Data: SWAMP
 
Water Quality Objective/Criterion:
Objective/Criterion Reference:
 
Evaluation Guideline: OEHHA Screening Value in fish and shellfish tissue for Total PCBs is 20.0 ppb (ug/Kg or ng/g).
Guideline Reference: Prevalence of Selected Target Chemical Contaminants in Sport Fish From Two California Lakes: Public health designed screening study. Sacramento, CA: Office of Environmental Health Hazard Assessment
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Avila Beach (Avila Pier) was collected at 14 monitoring sites [ SCS02OOAB001 - Avila Beach at pier, SCS02OOAB002 - Avila Beach at pier, SCS02OOAB003 - Avila Beach 30E of pier, SCS02OOAB004 - Avila Beach 30E of pier, SCS02OOAB005 - Avila Beach 100E of pier, SCS02OOAB006 - Avila Beach 100E of pier, SCS02OOAB007 - Avila Beach 530E of pier, SCS02OOAB008 - Avila Beach 530E of pier, SCS02OOAB009 - Avila Beach 10W of beach, SCS02OOAB010 - Avila Beach 10W of beach, SCS02OOAB011 - Avila Beach 100W of beach, SCS02OOAB012 - Avila Beach 100W of beach, SCS02OOAB013 - Avila Beach 250W of pier, SCS02OOAB014 - Avila Beach 250W of pier]. Three of these sites are considered independent per the policy, as they are more than 200m apart.
Temporal Representation: Data was collected on a single day 8/26/2002.
Environmental Conditions: Staff is not aware of any special conditions that might effect interpretation of the data.
QAPP Information: All data was collected following the Standard Operating Procedures and Data Quality Objectives outlined in the SWAMP QAMP, (Puckett, 2002). QA data are not included in data submission.
QAPP Information Reference(s):
 
 
DECISION ID
79752
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
Pollutant: Total Coliform
Final Listing Decision: List on 303(d) list (TMDL required list)
Last Listing Cycle's Final Listing Decision: List on 303(d) list (TMDL required list)(2016)
Revision Status Original
Sources: A Source Unknown
Expected TMDL Completion Date: 2027
Impairment from Pollutant or Pollution: Pollutant
 
Regional Board Conclusion: This pollutant is being considered for placement on the section 303(d) list under sections 3.2 and 3.3 of the Listing Policy. Under these sections, a single line of evidence is necessary to assess listing status.

Seven lines of evidence are available in the administrative record to assess this pollutant. Thirty six of 191 samples exceeded the shellfish harvesting water quality objective (Water Quality Control Plan: Ocean Waters of California, SWRCB, 2009).

Based on the readily available data and information, the weight of evidence indicates that there is sufficient justification in favor of placing this water segment-pollutant combination on the section 303(d) list in the Water Quality Limited Segments category.

This conclusion is based on the staff findings that:
1. The data used satisfies the data quality requirements of section 6.1.4 of the Policy.
2. The data used satisfies the data quantity requirements of section 6.1.5 of the Policy.
3. Thirty six of 191 samples exceeded the shellfish harvesting water quality objective and this exceeds the allowable frequency listed in Table 3.2 of the Listing Policy.
4. Pursuant to section 3.11 of the Listing Policy, no additional data and information are available indicating that standards are not met.
 
Regional Board Decision Recommendation: After review of the available data and information, RWQCB staff concludes that the water body-pollutant combination should be placed on the section 303(d) list because applicable water quality standards are exceeded and a pollutant contributes to or causes the problem.
 
State Board Review of Regional Board Conclusion and Recommendation:
 
State Board Decision Recommendation: After review of this Regional Board decision, SWRCB staff recommend the decision be approved by the State Board.
 
 
Line of Evidence (LOE) for Decision ID 79752, Total Coliform
Region 3     
Pacific Ocean at Avila Beach (Avila Pier)
 
LOE ID: 56023
 
Pollutant: Total Coliform
LOE Subgroup: Pollutant-Water
Matrix: Water
Fraction: None
 
Beneficial Use: Shellfish Harvesting
 
Number of Samples: 191
Number of Exceedances: 36
 
Data and Information Type: PATHOGEN MONITORING
Data Used to Assess Water Quality: Water Board staff assessed Beach Watch data for Pacific Ocean at Avila Beach (Avila Pier) to determine beneficial use support and results are as follows: 36 of 191 samples exceed the criterion for Coliform, Total.
Data Reference: Data for Region 3 Beach Watch.
 
SWAMP Data: Non-SWAMP
 
Water Quality Objective/Criterion: The California Ocean Plan (2009) states the following: At all areas where shellfish may be harvested for human consumption, the following bacterial objectives shall be maintained throughout the water column: Ten percent of the samples collected during any 30-day period shall not exceed 230 MPN/100mL.
Objective/Criterion Reference: California Ocean Plan Water Quality Control Plan Ocean Waters of California 2009
 
Evaluation Guideline:
Guideline Reference:
 
Spatial Representation: Data for this line of evidence for Pacific Ocean at Avila Beach (Avila Pier) was collected at 1 monitoring site [ AB8]
Temporal Representation: Data was collected over the time period 1/1/2007-8/30/2010.
Environmental Conditions: Staff is not aware of any special conditions that might affect interpretation of the data.
QAPP Information: The samples were collected for the Beach Watch program.
QAPP Information Reference(s):